As much as it clearly pains you, there were other people discussing Merrill, including when this thread was brought to this new forum.
As for the topic at hand, I'd love to see the myriad of fraternities fleshed out and explored. I'd enjoy seeing three-dimensional mages given depth and personality, with varying political views and stances on magic and the Circles. The mages of the now autonomous Circles, the hedge witches who have lived outside the Circles all their lives, the Dalish mages of the clans, the apostates of the Tal-Vasoth and Vasoth outside the communities of the Qun; there's a multitude of areas to explore in the landscape of the Mage-Templar War, and outside it.
I'd also like to see blood magic as a school of magic that isn't automatically vilified simply because the Chantry labels it as 'evil', or to see it turned into the 'dark side of the Force'. It's a grey area, and it should be treated as such.
It was a relatively absent topic until your introduction Lob, recall i was here from near on the beginning of the thread. if not actively posting then observing. But i am pleased it's finally ended and so i can let it go.
I agree i would like to see the structuring of the Mages explored in DAI but that said i have a feeling their camps have remained much the same as they were Pre-War in fact i'd consider it likely that the majority of the Loyalists simply ignored the disolving of the Circles via the "Grand Enchanter" and returned to where they believe they belong, It's part of the conflicting ideologies of the mages that i always found interesting. How some can accept their needed place in society and yet others will fight against reality with all of their being. But that's where it ends, I have never had a favorable view of Apostates or the Dalish mages but considering they often destroy themselves as often as they wreak havoc i truely only concern myself when they become abominations and threaten the communities they linger near.
I'd also like to see the newly released Templar order explored in the same light, their positions, restructuring, views, Their extremists, Moderates and all of the above deciding how the order should be used in the future given that it is now for the first time in a thousand years free to act upon their original mandate.
it's not a gray area to me and it should be treated as it currently is in Thedas if not worse. Notable exceptions should be the Gray Wardens, Their mages risking corruption and possession in combating the forces seeking to end Humanity is a laudable feat not something to condemn them for. They are actually Hero's.